Watch Trigger My Heart Episode 4 Online for Free

The episode opens with Lin Yuyun, the adopted daughter of the Gu family, learning that Gu Yanluo has returned safely and her mental disability has been cured. To frame Gu Yanluo and gain sympathy, Lin Yuyun goes as far as to cut her wrist, staging a suicide attempt. In the hospital, she successfully deceives her adoptive father, Gu Hongying, into showing her pity, leading to a fierce argument between Gu Hongying and his wife, Qin Qing, who defends their biological daughter. After sending their parents away, Lin Yuyun and her lover, Xiang Tianci, reveal their true colors. Fearing Gu Yanluo, who has regained her senses, they conspire to lure Gu Yanluo to the hospital under the guise of calling off the engagement, planning to murder her. Their sinister plot begins.